Project

Simple Tool Stack

A hub of small tools that each do one thing well. The quick ones run on your device; heavier jobs run server-side.

Next.js
Docker
Cloudflare
WebAssembly
Turborepo
Traefik
Hono
Mantine
Sablier

Simple Tool Stack: the Image Compressor showing a before and after of a compressed photo, 92 percent smaller, with a download button — simpletoolstack.com

Simple Tool Stack: the home page with the 'Free image and text tools, right in your browser' hero above the Image tools grid (compressor, converter, crop, resize, circle crop, EXIF remover)

Simple Tool Stack: the Circle Crop tool fitting a photo into a circular frame with output size options

Simple Tool Stack: the Merge PDF tool with two files queued to combine into one document

Simple Tool Stack: the Image Compressor controls with quality, target size and email modes and output format options

Simple Tool Stack is a hub of small, focused image and text tools. The free ones run entirely in the browser, so files are processed on the device and never uploaded.

The image tools compress, convert between formats, and strip EXIF metadata; the text tools clean and reshape copy, convert case, and generate URL slugs. Each runs instantly, with no server round trip.

The heavier tools run server-side, each as an isolated container behind a Traefik edge router and scaled to zero with Sablier when idle, which keeps the whole platform on a single small VPS. Accounts and billing are wired through Better Auth and Polar, ready to switch on for the paid tier.